The SD100 features the 3MOS sensor, developed by Panasonic based on its proven 3CCD technology. Compared with a conventional 1MOS, Panasonic's new 3MOS system captures more vibrant, true-to-life colours, greater detail and richer gradation. Also, the MOS sensor’s light-receiving area is about double* that of a CCD sensor, so sensitivity is higher. That realizes much better low light performance down to 2 lux. * Compared with the HDC-SD9/HDC-HS9.

The Manual Ring is provided for users who want more creative freedom in their image production. In the SD100, users can enjoy precise, responsive fingertip control over five key settings -- zoom, focus, iris, shutter speed, and white balance.

The iA function automatically activates several convenient shooting functions. These include Advanced O.I.S., which compensates for hand-shake to eliminate blurring; Face Detection, which adjusts the exposure so faces are captured perfectly; and Intelligent Contrast Control, which helps ensure proper contrast. Also included is the Intelligent Scene Selector, which determines the shooting conditions and automatically selects the scene setting that will provide optimal results. (Face/Scenery/Low light/Spot Light)

The Leica Dicomer lens system used in the SD100 comprises 12 lenses in 9 groups, including aspherical lenses to improve resolution and contrast and an LD (low-dispersion) lens to prevent colour bleeding. Also, a special multi-coating process is applied to all lens elements to minimise chromatic aberration, so images are crisp, clear, and free of flare and ghosting. The use of a highly-refractive lens also made it possible to have both 12x zoom power and a compact body.